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The correlation between some daily milk traits and biochemical parameters in plasma and milk of dairy cows

Aiming the determination of the relationship between some daily milk traits (daily lactose content and somatic cell count) and biochemical parameters samples of blood and milk were taken during three months of research from 25 Holstein cows reared on an indoor dairy cattle farm. The relationship between the analyzed traits was determined using the Pearson Correlation Coefficients. The conducted statistical analysis indicates high variability of relationship strength, from negligible to strong relationship. A weak or negligible relationship was determined between the daily lactose content in milk and all analyzed biochemical parameters in plasma, while with the biochemical parameters in milk relationship was stronger. The correlation coefficients between the somatic cell count (normal and transformed) and biochemical parameters in plasma were higher than with the daily lactose content. Determined correlations should be considered when designing systems for the early prediction of mastitis occurrence on dairy cattle farms.

daily lactose content ; somatic cell count ; biochemical parameters ; dairy cattle

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